The McCormick 228778A1 pinion is a genuine OEM component designed for various McCormick CX, MC, and MTX series agricultural tractors. This critical drivetrain part ensures proper power transmission and smooth operation. Manufactured to original equipment specifications, it guarantees durability and precise fitment, maintaining the integrity of your machine's transmission system. This pinion is also cross-referenced as an equivalent OEM part for Case IH and New Holland models.